600 MW Monsoon Wind achieves commercial operation, delivering clean energy across borders
What began as a bold idea in 2011 is now a milestone in Asia’s clean energy story. The Monsoon Wind Power Project has officially reached its COD on 22 August 2025, becoming the first cross-border renewable energy project in Asia. Today, 600 MW of clean, utility-scale power flows from the mountains of southern Lao PDR into Vietnam, strengthening regional energy security, boosting economic growth, and triggering ASEAN grid aspirations by showing what’s possible when nations work together.
Stretching across the Dak Cheung District of Sekong Province and the Sanxay District of Attapeu Province, 133 wind turbines rise from the ridgelines, turning steadily in the region’s strong, reliable winds. This is the product of more than a decade of detailed wind studies. Their energy travels through four 115 kV substations, is stepped up to 500 kV at the project substation, and carried along a 27-kilometre high-voltage transmission line to the Lao–Vietnam border, where it connects to Vietnam’s 500 kV transmission system. From there, the transmission line continues another 44 kilometres to EVN’s Thanh My substation.
